There are several physical signs that indicate a reaction has reached equilibrium:
1. The reaction rate becomes constant - At equilibrium, the rates of the forward and reverse reactions become equal and the net reaction rate becomes constant.
2. No change in concentration - At equilibrium, the concentrations of the reactants and products remain constant.
3. No change in color or appearance - If the reaction involves a change in color or appearance, it will stop changing when equilibrium is reached.
4. No gas evolution - If the reaction produces a gas, the evolution of gas will stop when equilibrium is reached.
5. Temperature and pressure remain constant - The temperature and pressure of the reaction will remain constant at equilibrium, as long as the conditions are kept constant.
Overall, the physical signs of equilibrium will depend on the specific reaction and its conditions.
What physical signs indicate that a reaction has reached equilibrium
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